$6-24$M$.$ A $10,000$ N weight is to be lowered by a vertical cylinder, as shown in Figure $6-24.$ The cylinder has a $75-mm-$diameter piston and a $50-$ mm $-$diameter rod. The weight is to decelerate from $100\frac{m}{m}in$ to a stop in $0\mathrm{.}5$ s $.$ Determine the required pressure in the rod end of the cylinder during the deceleration motion.

$6-25$E$.$ A $6000-1l$ weight is being pushed up an inclined surface at constant speed by a cylin$-$